What is the code for converting php time to timestamp?

Converting time to timestamp is a fairly common task in PHP. A timestamp is an integer that represents the number of seconds from 0:00:00 on January 1, 1970 to the current time. It is usually used to record and calculate time. The following is the code to convert time to timestamp in PHP:

$datetime = "2021-11-11 11:11:11";  // 要转换的时间
$timestamp = strtotime($datetime);  // 转换为时间戳
echo $timestamp;  // 输出时间戳

In the above code, the strtotime() function is used to convert $datetime to timestamp, store the result in the $timestamp variable, and use echo Output the value of the $timestamp variable.

If you want to convert the current time to a timestamp, you can use the following code:

$timestamp = time();  // 获取当前时间戳
echo $timestamp;  // 输出时间戳

In the above code, the time() function is used to get the current timestamp and store the result in In the $timestamp variable, use echo to output the value of the $timestamp variable.

If you want to convert the timestamp to time, you can use the following code:

$timestamp = 1636692671;  // 要转换的时间戳
$datetime = date("Y-m-d H:i:s", $timestamp);  // 转换为时间格式
echo $datetime;  // 输出时间

In the above code, the date() function is used to convert $timestamp to time format, the format is "year -Month-Day Hour:Minute:Second". Store the result in the $datetime variable and use echo to output the value of the $datetime variable.

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